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MINOR: applet: Add support for callback functions to exchange data with channels

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For now, it is not usable, but this patch introduce the support of callback
functions, in the applet structure, to exchange data between channels and
applets. It is pretty similar to callback functions defined by muxes.
This commit is contained in:
Christopher Faulet 2024-01-11 09:02:17 +01:00
parent 04eca50f49
commit 361b81bfca
1 changed files with 4 additions and 0 deletions
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4
include/haproxy/applet-t.h
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@ -27,6 +27,7 @@
#include <haproxy/dynbuf-t.h>
#include <haproxy/freq_ctr-t.h>
#include <haproxy/obj_type-t.h>
#include <haproxy/task-t.h>
#include <haproxy/xref-t.h>
/* flags for appctx->state */
@ -53,6 +54,9 @@ struct applet {
int (*init)(struct appctx *); /* callback to init resources, may be NULL.
expect 0 if ok, -1 if an error occurs. */
void (*fct)(struct appctx *); /* internal I/O handler, may never be NULL */
size_t (*rcv_buf)(struct stconn *sc, struct buffer *buf, size_t count, unsigned int flags); /* called from the upper layer to get data */
size_t (*snd_buf)(struct stconn *sc, struct buffer *buf, size_t count, unsigned int flags); /* Called from the upper layet to put data */
/* TODO: ADD fastfwd callback functions */
void (*release)(struct appctx *); /* callback to release resources, may be NULL */
unsigned int timeout; /* execution timeout. */
};